use lib_config::database::*;
fn main() {
    let a = 10;
    let b = 20;
    let i = add(a, b);
    println!("{}", i);

    let i = sub(a, b);
    println!("{}", i);

    let f = div(a as f32, b as f32);
    println!("{}", f);

    let i = multi(a, b);
    println!("{}", i);

    let f = file_new("test.txt");
}